Which stage indicates a firm commitment to a new behavior?

The stage that indicates a firm commitment to a new behavior is Maintenance. In this stage, individuals have successfully implemented their new behavior and are actively working to sustain it over time. They have moved beyond the initial phases of change and have developed strategies to avoid relapse and reinforce their commitment. Maintenance involves ongoing practice and reminders to ensure that the new behavior becomes an integral part of their lifestyle.

At this point, individuals typically display a higher level of confidence in their ability to continue the behavior, which is essential for long-term success. They often evaluate their progress and may make adjustments to their strategies to deal with challenges that arise, ensuring that they remain committed to their new behavior over the long run.